import { type VolumioState } from './VolumioStateManager';
export interface StateMachine {
    currentStatus: 'play' | 'pause' | 'stop';
    currentSeek: number;
    currentPosition: number;
    getNextIndex: () => number;
    stopPlaybackTimer: () => void;
    updateTrackBlock: () => any;
    play: () => any;
    randomQueue: {
        prev: () => number;
    };
    currentRepeat: boolean;
    currentRepeatSingleSong: boolean;
    currentRandom: boolean;
    currentVolume: number | null;
    currentDbVolume: number | null;
    currentMute: boolean;
    currentDisableVolumeControl: boolean;
    isVolatile: boolean;
    volatileState?: {
        seek: number;
    };
    unSetVolatile: () => void;
    setVolatile: (params: {
        service: string;
        callback: () => void;
    }) => void;
    setConsumeUpdateService: (serviceName?: string) => void;
}
export interface CommandRouter {
    servicePushState: (state: VolumioState, serviceName: string) => void;
    volumioGetState: () => {
        service: string;
        volatile: boolean;
    };
    volumioStop: () => any;
}
export interface MPDPlugin {
    ignoreUpdate: (value: boolean) => void;
}
export interface VolumioStateTranformer {
    transformStateBeforePush?: (state: VolumioState) => VolumioState;
    /**
     *
     * @param playerTime Player seek position in milliseconds
     * @returns
     */
    modifyVolatileSeekBeforeSet?: (playerTime: number) => number;
}
export interface VolumioContext {
    commandRouter: CommandRouter;
    statemachine: StateMachine;
    mpdPlugin: MPDPlugin;
    stateTransformer?: VolumioStateTranformer;
    /**
     * Whether to unset ourselves from volatile state when player stops.
     * - `always`: always unset when player stops.
     * - `never`: never unset.
     * - 'manual': only unset when stop() was called, If player stops because
     *    playback has finished, this will not trigger unset.
     * Default: `always`
     */
    unsetVolatileOnStop?: 'always' | 'never' | 'manual';
}
export declare function validateVolumioContext(value: any): value is VolumioContext;
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